# Relationship history for MSHA mine 4406101

Current hierarchy: **Delbert R  Sturgill → Lebo Mining Inc → No 3**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Lawson John & Truman → No 3; 1983-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Delbert R  Sturgill → No 3; 1984-04-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lawson Mining Company Inc → No 3; 1984-06-01 to 1986-01-12; source msha-controller-operator-history
- **controller_controls_operator:** Lawson John & Truman → Lawson Mining Company Inc; 1984-06-01 to 1986-01-12; source msha-controller-operator-history
- **operator_operates_mine:** Roberts Enterprises Inc → No 3; 1986-01-13 to 1987-05-06; source msha-controller-operator-history
- **controller_controls_mine:** Roberts Thomas W Et Al → No 3; 1986-01-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roberts Thomas W Et Al → Roberts Enterprises Inc; 1986-01-13 to 1987-05-06; source msha-controller-operator-history
- **operator_operates_mine:** J Mining Corp → No 3; 1987-05-07 to 1988-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Hood Carl E → No 3; 1987-05-07 to 1988-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Hood Carl E → J Mining Corp; 1987-05-07 to 1988-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Roberts Enterprises Inc → No 3; 1988-02-01 to 1990-02-11; source msha-controller-operator-history
- **controller_controls_operator:** Roberts Thomas W Et Al → Roberts Enterprises Inc; 1988-02-01 to 1990-02-11; source msha-controller-operator-history
- **operator_operates_mine:** Lebo Mining Inc → No 3; 1990-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Delbert R  Sturgill → Lebo Mining Inc; 1990-02-12 to current/open; source msha-controller-operator-history